Sleeping bag



March 16, 1937. E. H.-WALLlN SLEEPING BAG- Filed Nov. 14, 1933 a. hm;

Patented Mar. 16, 1937 UNITED srnr s genera nrgnr @FFEQE SLEEPING BAG Ernst Harald Wallin, Arvika, Sweden,

Cajs -Marie Walli Application November 14, 193

assignor to n, Arvika, Sweden 3, Serial No. 697,977

In Sweden November 17, 1932 I 1 Claim.

ents of the invention the accompanying drawing, in

the sleeping bag according to 4 Figure 5 shows a detail of the sleeping bag according to Figure l.

Figure 6 shows a detail of the embodiment according to a fourth embodiment.'

shows a perspective View of the a stretcher.

stated above, preferably consists of a thinner or looser fabric than the inner layer of fabric, which is indicated by 2. The outer layer may also be Waterproofed. In-all of the figures 3 indicates the continuous interspace or the interversal direction of the sleeping bag. By means of scams 8, 9 and it] the said pieces are firmly united along one end and two sides. Further the pieces 5 and 6 forming the cloth 2 of the sleeping bag are firmly united i2 and I3, which 8, 9 and it] but open end of the sleeping bag.

In the embodiment illustrated in Figure 3 the bag consists of two round-woven, tubular portions M and have about the same tube, which are adjacent to the outer bottom of the sleeping bag. In the last described embodiments the inner bottom of the sleeping bag formed by the inner layer of fabric 2 will thus have no connection with the outer bottom of the sleeping bag formed by the outer layer of fabric I.

In the embodiment shown in Figure 4 the inner layer of fabric 21 forms a smaller bag formed within a larger bag, which is formed by the outer layer of fabric A continuous interspace 3 has thus been obtained in this embodiment. In the outer layer of fabric there is, as may be seen from the Figures 4, 5, and 6, provided a number of holes l6, adapted to make possible a releasable connection of the layers of fabric by receiving suitable fastening members secured to the inner layer of fabric. course different kinds of fastening members may be used for this ample the recesses may be shaped as button holes and on the inner layer there may be secured cords or the like, the length of which corresponds to the width of the interspace, buttons being secured at the free ends of the said cords. However, such a connection not making it possible for the person lying in the bag to move very much, it is not to be recommended.

Figures 4 and 5 show, however, a very simple and appropriate connection, which will enable the person lying in the sleeping bag to move to a great extent. In the embodiment in question the connection of the layers of fabric has form of a cord is secured of fabric 2 in such a manner that lengthened loops [1 are formed, and that another cord l8 located on the outside of the outer layer of fabric l is led in proper turns down through the respective hole I6, is introduced into a loop l1 below the hole and then led upward again through the hole. The cord I8 being able to slide in and along the loops I1 and the latter being, moreover, resilient to a certain degree, the connection offers a considerable room to move.

Figure 6 shows a modified keeper means, the loop l1 replaced by a ring l9, into which the cord i8 is introduced. Also in this embodiment a resilient connection is obtained. To make it easier to introduce the cord into the loops or rings united with the inner layer of fabric l the same are made oblong, the length being so adapted with regard to the interspace 3 that the loops extend through the holes l6, whereby it will be easier to introduce the cord l8 into the loops.

Figure 7 shows the sleeping bag used as a stretcher, numeral indicating a separable frame, the carrying poles of which are introduced into loops obtained by the uniting of the inner layer of fabric, which loops, however, just as advantageously may be disposed on the outside of the outer bag. Along its one end the inner as well as the outer bag is provided with a pull fastener 23, 24 respectively. A flap 25 formed from the outer layer of fabric of the sleeping bag is provided of its side edges, the said loops serving to receive the respective carrying pole. The said flap will thus form the bed-head of the stretcher. A flap 26 formed from the inner layer of fabric of the sleeping bag may be secured around the head of the person lying on the stretcher. Leather bands 21 disposed on the under-side of the sleeping bag and united by the side stays, the said bands also being adapted serve as reinforcing members. Also the leather bands 28 united with the end stays of the stretcher serve as reinforcing members.

The interspace 3 formed between the layers of fabric is meant, while the sleeping bag is being used, to be filled with a heat insulating material. If thus the sleeping bag is used for military purposes the bag may be filled before being used for instance with straw, which is removed again in the morning, after which the bag is rolled up. The bag not being voluminous, after the filling material has been removed, it is easily transported. If the bag is used in sanatoriums it is, of course, very advantageous that the filling material is easily removed, because in such a case the sleeping bag may be disinfected and washed respectively more often, than if the filling material were hard to remove.

Of course, several different embodiments in addition to those shown in the drawing and debe thought of within the with loops along each ment according to Figures may be replaced by the members indicated by 4 and 1 in the; drawing, without departing from the fundamental idea of the invention.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

A sectional sleeping bag comprising at least two layers of fabric, one layer of fabric forming an outer bag section which is open at one end only, and the other layer of fabric forming another similar although considerably smaller bag section, which is spaced from both the bottom and the sides of the outer bag section, in such a manner that an interspace is provided both below and above the inner bag section when the latter is removably arranged within the outer bag .section, the interspace in its longitudinal direction extending from the bottom of the outer bag section and opening at the separated edges constituting the open end of the sleeping bag per se, and the said interspace when viewed in the transverse section extending completely around the inner bag section, one of the bag sections being provided adjacent its side and end edges with a series of apertures, keeper means fixed relative to the other of the bag sections in the vicinity of the apertures when the bag sections are arranged one within the other, and flexible tie means extending about the bag per se and} across the apertures and detachably engaging the keeper means for removably maintaining the bag sections one within the othe ERNST HARALD WALLIN. 

